GSA
Gas-Fired Steam Boilers –
Boiler Manual
21
Part Number 550-110-738/0703
The boiler should be inspected and started annually,
at the beginning of the heating season, only by a
qualified service technician. In addition, the
maintenance and care of the boiler designated in Table
9, page 20 and explained on the following pages must
be performed to assure maximum boiler efficiency
and reliability. Failure to service and maintain the boiler
and system could result in equipment failure.
Electrical shock hazard — Turn off power to the boiler
before any service operation on the boiler except as
noted otherwise in this manual. Failure to turn off
electrical power could result in electrical shock,
causing severe personal injury or death.
The boiler contains ceramic fiber and fiberglass
materials. Use care when handling these materials
per instructions on page 32 of this manual. Failure to
comply could result in severe personal injury.
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Inspect . . . . . . . . . .
Reported problems
Inspect any problems reported by owner and correct before
proceeding.
Boiler area
1. Verify that boiler area is free of any combustible materials,
gasoline and other flammable vapors and liquids.
2. Verify that boiler area is free of any of the contaminants listed in
Table 2 on page 5 of this manual. If any of these are present in
the boiler intake air vicinity, they must be removed. If they cannot
be removed, install combustion air piping to the boiler in
accordance with national, provincial or local codes.
Air openings
1. Verify that combustion and ventilation air openings to the boiler
room and/or building are open and unobstructed. Check
operation and wiring of automatic combustion air dampers, if
used.
2. Verify that boiler vent discharge and air intake are clean and
free of obstructions.
Flue gas vent system
1. Visually inspect entire flue gas venting system for blockage,
deterioration or leakage. Repair any joints that show signs of
leakage in accordance with vent manufacturer’s instructions.
2. Verify that masonry chimneys are lined, lining is in good
condition, and there are not openings into the chimney.
Failure to inspect for the above conditions and have
them repaired can result in severe personal injury or
death.
Pilot and main burner flames
1. Visually inspect pilot burner and main burner flames as directed
under Section 7, page 15 of this manual.
Piping
1. Check the boiler interior piping and all system piping for
signs of leaks.
2. Repair any leaks before proceeding.
Do not use petroleum-based cleaning or sealing
compounds in boiler system. Severe damage to boiler
will occur, resulting in substantial property damage.
Eliminate all system or boiler leaks. Continual fresh
makeup water will reduce boiler life. Minerals can
build up in sections, reducing heat transfer,
overheating cast iron, and causing section failure.
Leaking water may also cause severe property
damage.
Boiler heating surfaces
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Inspect . . . . . . . . . .
11 Service and maintenance
continued
The boiler contains ceramic fiber and fiberglass
materials. Use care when handling these materials
per instructions on page 32 of this manual. Failure
to comply could result in severe personal injury.
1. Disconnect the vent pipe at the boiler draft diverter and remove
draft diverter after turning off power to the boiler.
2. Use a bright light to inspect the boiler flue collector and
heating surfaces.
3. If the vent pipe or boiler interior surfaces show evidence of
soot, follow “Cleaning boiler heating surfaces”, page 23.
Remove the flue collector and clean the boiler if necessary
after closer inspection of boiler heating surfaces.
4. If there is evidence of rusty scale deposits on boiler surfaces,
check the water piping and control system to make sure the
boiler return water temperature is properly maintained (per
this manual).
5. Reconnect vent and draft diverter. Replace all boiler components
before returning to service.
6. Check inside and around boiler for evidence of any leaks from
the boiler. If found, locate source of leaks and repair.
Burners and base
1. After turning off power to the boiler, remove the jacket door
and base access panel (Figure 16, item 4, page 26).
2. Inspect burners and all other components in the boiler base.
3. If burners must be cleaned, raise rear of each burner to
release from support slot, slide forward and remove. Then
brush and vacuum the burners thoroughly, making sure all
ports are free of debris. Carefully replace all burners, making
sure burner with pilot bracket is replaced in its original position
and all burners are upright (ports up).
4. Inspect the base insulation.
a. Verify that the insulation is intact and secure against all
four sides of the base.
If insulation is damaged or displaced, do not
operate the boiler. Replace or reposition insulation
as necessary. Failure to replace damaged insulation
can result in a fire hazard, causing severe personal
injury, death or substantial property damage.